AN INSTRUCTOR AND STUDENT PLT RPT THE STUDENT'S MISADVENTURE WITH A BE19 THAT DEPARTS THE RWY DURING THE LNDG ROLLOUT. THE STUDENT WAS ON A SUPERVISED SOLO FLT.

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THIS DAY AROUND XA30; MY STUDENT AND I ARE TAKING OFF FROM ADS ON A BEECHCRAFT BE19 SPORT 180 FOR HQZ. I DECIDED THEN TO LET HIM GO FOR HIS SECOND SUPERVISED SOLO WHICH CONSISTS OF 3 TKOFS AND LNDGS TO A FULL STOP. AFTER ALL THE LNDGS WE PRACTICED TOGETHER (64); AND ALSO THE FIRST SUPERVISED SOLO FLT HE DID THE DAY BEFORE; I'M FEELING REALLY CONFIDENT TO LET HIM GO SOLO FOR A SECOND TIME. SO I PUT AN ENDORSEMENT IN HIS LOGBOOK AND GET OFF THE AIRPLANE IN HQZ. THE AIRPLANE STARTS TAXIING TO THE RWY 35; GETS INTO POS; STARTS THE TKOF AND GETS AIRBORNE. THE FIRST TFC PATTERN SEEMS QUITE NICE; UNTIL HE GETS TO FINAL. ON FINAL THE AIRPLANE IS TOO HIGH. PITCHING DOWN TO GET DOWN TO THE RWY; THE AIRSPD IS INCREASING WHICH MAKES THE FLARE MORE DIFFICULT. THE AIRPLANE TOUCHES DOWN AND BOUNCES 2 TIMES. MY STUDENT DECIDES THEN TO GAR AND THE AIRPLANE TAKES OFF ONCE AGAIN FOR ANOTHER TURN. THE 2ND TFC PATTERN IS GOOD UNTIL; ONCE AGAIN; THE PLANE GETS ON FINAL. ON FINAL; THE AIRPLANE IS STILL TOO HIGH SO THE SAME PROB HAPPENS AGAIN: TOO MUCH AIRSPD ON THE FLARE. BUT THIS TIME; MY STUDENT FLARES PRETTY WELL; LETTING THE AIRSPD DECREASE. THE AIRPLANE BOUNCES ONCE AGAIN; BUT JUST A LITTLE. THE STUDENT THEN ADDS JUST ENOUGH PWR TO GET THE PLANE TO A BETTER POS. THE ENG SHUT DOWN; THE PROP IS INTACT. JUST THE L MAIN GEAR IS CRACKED; BUT IT DIDN'T COLLAPSE. I THINK THAT AFTER THE TOUCHDOWN; MY STUDENT DIDN'T KEEP ENOUGH BACK PRESSURE ON THE YOKE; LETTING THE AIRPLANE WHEELBARROW. TO TRY TO CORRECT THE SIT; THE STUDENT HAS; THEN; USED THE BRAKES. BUT WITH MORE WT ON THE R MAIN GEAR AND LESS ON THE L; THE USE OF THE BRAKES HAS RESULTED IN CREATING A DIFFERENTIAL BRAKING ACTION; MAKING THE AIRPLANE ABRUPTLY GO TO THE R. WHILE SEEING THE AIRPLANE GOING TOWARD THE GRASS; THE STUDENT THEN PULLED THE MIXTURE TO IDLE CUT OFF AND STOPPED THE ENG. THAT ACTION ACTUALLY SAVED THE AIRPLANE AND ITS PLT. WHEN LOOKING BACKWARD TO THIS INCIDENT; WHICH COULD HAVE BEEN WORSE; I CAN TELL THAT THERE WAS HERE AT LEAST 3 IMPORTANT MISTAKES AT THE ORIGIN OF THE INCIDENT: I; AS THE FLT INSTRUCTOR SUPERVISING THE SOLO AND OBVIOUSLY RESPONSIBLE FOR IT; SHOULDN'T LET THE STUDENT GO SOLO AFTER JUST ONE LNDG. EVEN IF THE STUDENT HAS DEMONSTRATED REALLY GOOD PERFORMANCES ON LNDGS; I SHOULDN'T HAVE BEEN SO CONFIDENT AND DONE AT LEAST A COUPLE OF LNDGS MORE WITH HIM THAT DAY. THE STUDENT RELEASED THE BACK PRESSURE ON THE YOKE WHILE THE ROLLOUT WASN'T FINISHED. A LNDG IS NOT FINISHED UNTIL THE AIRPLANE HAS STOPPED OR GETS AIRBORNE. THE STUDENT HAS APPLIED THE BRAKES WHILE WHEELBARROWING; INSTEAD OF; FOR INSTANCE; HAVING PUT THE FLAPS IN THE UP POS AND REAPPLIED THE BACK PRESSURE ON THE YOKE. DURING THE LNDG; THE PLT SHOULD AVOID PUTTING HIS FEET ON THE BRAKES: THE HEELS SHOULD STAY ON THE FLOOR. SUPPLEMENTAL INFO FROM ACN 393006: THE AIRPLANE BOUNCED ONCE SO I SET A LITTLE PWR TO ALIGN IT AGAIN; THEN TOOK OFF PWR AND TOUCHED DOWN THE RWY WITH THE MAIN LNDG GEAR AND STARTED SETTLE DOWN ON THE 3 WHEELS. BECAUSE I WAS TOO FAST I TRIED TO SLOW THE AIRPLANE BY PUTTING BRAKE PRESSURE AND IT SKIDDED TO THE R IN AN ANGLE OF ABOUT 80 DEGS. WHEN I GOT INTO THE GRASS ON THE SIDE; I CUT THE MIXTURE AND SHUT DOWN THE ENG; AND STOP THE PLANE BY BRAKES. ONCE IT STOPPED I SHUT DOWN ALL ELECTRICAL SYS AND GOT OFF THE PLANE.